Searching for a personalized free Jet Lag Calculator?

Whether you travel often or not; getting to your destination always comes with some tiredness and struggling to adjust to your new time zone, so you will benefit from this Jet Lag Calculator will help you.

This calculator considers your departure and arrival time zones, flight schedule, and length of stay to give you a personalized plan to get rid of jet lag as soon as possible.

You’ll get recommendations for optimal sleep, light exposure, and hydration, all designed to align your circadian rhythm with your destination.

Simply enter your travel details, and the calculator will display how many days you will need to recover from your jet lag, a step-by-step schedule so you will arrive feeling alert, refreshed, and ready to enjoy your vacation.

Table of Contents

Departure

City

Time Zone (UTC offset)

Departure Time

Arrival

City

Time Zone (UTC offset)

Arrival Time

Days Staying at Destination

Your Jet Lag Analysis

Estimated Recovery Time

Tips to Minimize Jet Lag

About The Jet Lag Calculator

What is it?

Jet lag happens when your body’s internal clock is not adapted with the new environment and time zone.

It can mess with your sleep, make you fatigue, have lack of energy, and even gastrointestinal issues.

So this Jet Lag Calculator works just like professional tools like Jet Lag Rooster, and jet lag calculator Sleepopolis: it works out the time difference and direction of travel and provides personalized recommendations to reduce jet lag.

Jet lag feels worse when you travel east because you lose time, but it’s easier when you go west since you gain time

How does it work?

Research confirms that light exposure, meal timing, and melatonin at the right times can reset your body clock and reduce jet lag.

Enter your travel information

Start by selecting your departure city, arrival city, and their respective time zones. Your calculator utilizes these to determine how many time zones you’re traveling across.

Enter travel dates and times

Input your arrival time and departure time. This helps your calculator to be aware of whether you’re traveling west or east because that dictates how your internal body clock adjusts.

Enter your stay length

If you’ll be staying at your destination for a few days or weeks, the calculator does factor that into account when computing your total recovery time.

Automatic time zone detection (Optional)

You can alternatively click “Detect My Time Zone” to have it automatically detect your current location from your browser settings, without needing to enter it manually.

Calculate your jet lag

The moment you click “Calculate Jet Lag”, the calculator instantly processes your entries and shows:

Number of time zones covered
Travel in an east or west direction
Jet lag severity (mild, moderate, or severe)
Recovery time in days
Helpful tips to minimize jet lag

Most of the travelers that followed these tips experience reduced fatigue and faster adjustment to new time zones.

Does it really work?

Yes, shifting your body clock before and during your trip can help reduce jet lag symptoms.

The Center for Disease Control (CDC) recommends adjusting your schedule and light exposure when traveling internationally (CDC, Yellow Book, 2016).

Why use this Jet Lag Calculator?

Customized to your individual travel schedule and time zone difference.
Provides a specific, step-by-step plan.
Based on circadian rhythm science and CDC recommendations.

How do I calculate jet lag recovery time Manually?

Most of the time It takes about one day to get used to a time zone when you fly east, and about half a day per time zone when you fly west.

So, if you travel from Los Angeles to London, you cross 8 time zones east, that means it might take around 8 days for your body to feel normal again.

And if you fly from Paris to New York which is 6 time zones west, you will need aoudad 3 days to get fully recovered from the jet lag.

Jet lag recovery time for eastward and westward flights

Check Out More Calculators:

Gargie, is writer, traveler & a digital marketing specialist passionate about traveling and exploring new cultures. She is a savvy traveler who likes to pack light, testing various luggage brands and seeking out budget-friendly airline options. Gargie enjoys creating unique recipes when she’s not on the go.